Guwahati vs Motihari
Side-by-side air quality comparison between Guwahati and Motihari.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Guwahati | Motihari |
|---|---|---|
| PM2.5(µg/m³) | 31.90 | 152.70 |
| PM10(µg/m³) | 36.00 | 170.90 |
| NO₂(µg/m³) | 5.40 | 59.80 |
| SO₂(µg/m³) | 4.20 | 22.90 |
| O₃(µg/m³) | 97.00 | 45.00 |
| CO(µg/m³) | 393.00 | 1174.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Motihari averaged 116 — a 7-point (6%) gap, with Guwahati the more polluted and Motihari the cleaner of the two. On 964 days when both cities reported, Motihari was cleaner on 495 of them; the average daily gap was 72 AQI points.
Seasonality & days
Guwahati peaks in January, while Motihari peaks in November. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Motihari was 1.2% Severe and 39.1% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Motihari 26 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Motihari has improved by 106 AQI points (47.7%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Motihari hit AQI 448 at Gandak Colony (BSPCB) on 2022-11-17.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Motihari spans 1 stations with a 0-point spread (min 153, max 153).
Verdict
🏆 Guwahati has better air quality with an AQI of 54 compared to Motihari's 326. That's a significant difference of 272 points.